Deep drawing – or thermoforming – is an increasingly popular alternative to injection molding for certain product groups, not least due to potential economies of scale. Until now, however, attaching BOPP labels to thermoformed products has required a separate process step; as temperatures and pressures used in thermoforming are much lower than those in injection molding, direct fusion is not possible.
Treofan has thus developed a special surface that attaches perfectly to deep-drawn films under the conditions typically used for thermoforming. The resulting join between container and label is visually and functionally near-indistinguishable from the complete fusion achieved by injection molding. Following a comprehensive series of tests – including with Illig, a leading provider of machinery and tools for thermoforming and packaging technology – the new label film is now being rolled out on the market on a large scale under the name Treofan EPT.